Every year The Post has summer interns, and every year those interns must be hazed educated. Last year, it was this poor fellow who spent a day on the roof for a heat experiment. On Friday, in the midst of Sweat Ceiling II, Capital Weather Gang intern Justin Grieser and I went out to “learn” more about how hot some of D.C.’s most famous icons can get.

And the forecast didn’t disappoint.

It was a record-breaking day with temperatures reaching highs of 104 at Reagan National Airport, 103 at Dulles and 101 at Baltimore Washington International Airport. From noon until 4 p.m. — the hottest part of the day — Justin took temperature readings at some of D.C.’s most famous sites while I photographed every sweltering step.

Before you check out the gallery, take this quiz and see if you can figure out which of Justin’s test subjects is hotter.

You can get the whole story of our day (in pictures) here.

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